After Penicillin, other antibiotics were also purified from other microbes.

A farmer adds Azotobacter culture to the soil before sowing maize. How does it increase the yield of maize?</h2>&l…

<span>Which of the following is used as a biological pesticide?</span></h2></div>

Biogas is produced by:</h2></div>

Broad-spectrum antibiotics can kill only a small number of pathogens.

One of the following, aquatic weed has been exploited for biogas production</h2></div>

<span>What makes cyanobacteria agriculturally important?</span></h2></div>

In sewage treatment, bacterial flocs are allowed to sediment in a settling tank. This sediment is called?</h2><…